tSHJJJ-4 



353 



The fall of sea-level 

 which followed we only 

 know of recently, although 

 I admit that a more dili- 

 gent study of the literature 

 of the subject would have 

 revealed this to us many 

 years ago and then we 

 might have sought for the 

 proofs in our own area. 



It was found by chance, 

 however, in the following 

 way. When the L'Islet 

 dolmen was uncovered it 

 w r as found to be resting on 

 the 25 feet beach, and it 

 was also found that over 

 the beach and under the 

 dolmen there was a layer 

 of black sand. (See Trans- 

 actions, 1914, p. 123, dia- 

 gram Nos. 2 and 5.) This 

 deposit attracted the atten- 

 tion of the members of the 

 Geological Section of the 

 Society. 



THE BLACK BAND. 



During the summer of 

 1915 it was reported to the 

 Society that graves had 

 been uncovered on the sea- 

 shore at Rousse and the 

 Society held an excursion 

 to investigate. The graves 

 were not found on that 

 occasion but the black band 

 was. (Diagrams 2 and 

 5.) The graves found 

 during 1916 were found as 

 at ITslet to rest on the 

 beach of the 25 feet level 

 and again were in associa- 

 tion with the old earth sur- 

 face, but this was nothing 



